René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Improve Tutorial to warn about `GitDB` object database","articleBody":"I get a this error in our repo specifically with one commit which has `2064 files changed, 3030969 insertions(+)`.\n\n```\nPython 3.10.12 (main, May 27 2025, 17:12:29) [GCC 11.4.0] on linux\nType \"help\", \"copyright\", \"credits\" or \"license\" for more information.\n\u003e\u003e\u003e import git\n\u003e\u003e\u003e repo = git.Repo('/path/to/my-repo', odbt=git.GitDB)\n\u003e\u003e\u003e commit = repo.head.commit\n\u003e\u003e\u003e iterator = commit.tree.traverse()\n\u003e\u003e\u003e while True:\n...   next(iterator)\n... \n                                                                   … lots of output …\nTraceback (most recent call last):\n  File \"\u003cstdin\u003e\", line 2, in \u003cmodule\u003e\n  File \"/home/username/.local/lib/python3.10/site-packages/git/objects/util.py\", line 575, in _traverse\n    addToStack(stack, item, branch_first, next_d)\n  File \"/home/username/.local/lib/python3.10/site-packages/git/objects/util.py\", line 535, in addToStack\n    lst = self._get_intermediate_items(item)\n  File \"/home/username/.local/lib/python3.10/site-packages/git/objects/tree.py\", line 209, in _get_intermediate_items\n    return tuple(index_object._iter_convert_to_object(index_object._cache))\n  File \"/home/username/.local/lib/python3.10/site-packages/gitdb/util.py\", line 253, in __getattr__\n    self._set_cache_(attr)\n  File \"/home/username/.local/lib/python3.10/site-packages/git/objects/tree.py\", line 215, in _set_cache_\n    ostream = self.repo.odb.stream(self.binsha)\n  File \"/home/username/.local/lib/python3.10/site-packages/gitdb/db/base.py\", line 213, in stream\n    return self._db_query(sha).stream(sha)\n  File \"/home/username/.local/lib/python3.10/site-packages/gitdb/db/pack.py\", line 103, in stream\n    return entity.stream_at_index(index)\n  File \"/home/username/.local/lib/python3.10/site-packages/gitdb/pack.py\", line 784, in stream_at_index\n    return self._object(None, True, index)\n  File \"/home/username/.local/lib/python3.10/site-packages/gitdb/pack.py\", line 737, in _object\n    streams = self.collect_streams_at_offset(offset)\n  File \"/home/username/.local/lib/python3.10/site-packages/gitdb/pack.py\", line 871, in collect_streams_at_offset\n    streams = self._pack.collect_streams(offset)\n  File \"/home/username/.local/lib/python3.10/site-packages/gitdb/pack.py\", line 609, in collect_streams\n    ostream = pack_object_at(c, offset, True)[1]\n  File \"/home/username/.local/lib/python3.10/site-packages/gitdb/pack.py\", line 86, in pack_object_at\n    data = cursor.use_region(offset).buffer()\n  File \"/home/username/.local/lib/python3.10/site-packages/smmap/mman.py\", line 133, in use_region\n    self._region = man._obtain_region(self._rlist, offset, size, flags, False)\n  File \"/home/username/.local/lib/python3.10/site-packages/smmap/mman.py\", line 521, in _obtain_region\n    self._collect_lru_region(window_size)\n  File \"/home/username/.local/lib/python3.10/site-packages/smmap/mman.py\", line 338, in _collect_lru_region\n    lru_region.increment_client_count(-1)\n  File \"/home/username/.local/lib/python3.10/site-packages/smmap/util.py\", line 179, in increment_client_count\n    self.release()\n  File \"/home/username/.local/lib/python3.10/site-packages/smmap/util.py\", line 187, in release\n    self._mf.close()\nBufferError: cannot close exported pointers exist\n\u003e\u003e\u003e \n```","author":{"url":"https://github.com/sukima","@type":"Person","name":"sukima"},"datePublished":"2025-08-06T21:48:39.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/2065/GitPython/issues/2065"}